Oxi is a dwarf that can be found in the Rat Pits, a cave found beneath The Laughing Miner Pub in the dwarven capital city of Keldagrim.
Oxi is the keeper of rats. He ensures that the rats are well-fed and taken care of, so that they are in peak condition when they are fought by the overgrown cats that often visit the pits. He also takes care to ensure that they do not escape and infest the rest of the cave, although they do break out from time to time. He does not find this too much of a problem, though, as there are plenty of cats in the area.
Oxi carries a large bag on his back, filled with supplies needed to keep the rats alive. He also carries a walking stick, although this may just be to help remove the heavy burden of the sack.